Top definition
Acronym to define someone as being better than someone else.
B- Because
I- I'm
B- Better
T- Than
Y- You

Usually said in a smug tone.
Ricky: Why are you being so mean?

He was so BIBTY while sitting in starbucks siping his coffee with his MacBook Air.
by Josh Jarvey February 13, 2008
Get the mug
Get a BIBTY mug for your brother Paul.
buy the domain for your cat vlog